hispls 5,000+ posts
CarAudio.com Veteran
Looks like either custom made or prototype LMS drivers. The only 3" coil LMS drivers I've seen are RLS or tc 4000 but I think both use 4 slug motor.
I'd guess they'll work good in medium sized sealed or small-ish ported tuned very low.
I'd guess they'll work good in medium sized sealed or small-ish ported tuned very low.